The invention discloses a heat-resistant polyurethane material for 3D printing as well as a preparation method and a printing method of the heat-resistant polyurethane material. The heat-resistant polyurethane material is prepared from 100 parts of a p-phenylene diisocyanate-based thermoplastic polyurethane elastomer and 5 to 50 parts of talcum powder. According to the invention, the p-phenylene diisocyanate-based thermoplastic polyurethane elastomer and the talcum powder are blended, so that the hardness of the obtained heat-resistant polyurethane material is 90-95A, and the melt index at 210 DEG C is 20-35g/10min. The 3D printing technology is utilized, the heat-resistant polyurethane material is adopted for achieving integrated forming of the large-size non-pneumatic tire, the stability and high precision of long-time 3D printing are guaranteed, and the finally-formed tire has excellent performance.
本发明公开了一种用于3D打印的耐热聚氨酯材料及其制法和打印方法。所述热聚氨酯材料包括对苯二异氰酸酯基热塑性聚氨酯弹性体100份,滑石粉5~50份。本发明将对苯二异氰酸酯基热塑性聚氨酯弹性体与滑石粉进行共混,得到耐热聚氨酯材料的硬度为90~95A,210℃时熔融指数为20~35g/10min。本发明利用3D打印技术,采用所述耐热聚氨酯材料实现了大尺寸非充气轮胎的一体化成型,保证了长时间3D打印的稳定性和高精度性,使得最终成型轮胎具有优异的性能。
Heat-resistant polyurethane material for 3D printing as well as preparation method and printing method of heat-resistant polyurethane material
一种用于3D打印的耐热聚氨酯材料及其制法和打印方法
2021-10-12
Patent
Elektronische Ressource
Chinesisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B33Y ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING , Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
Europäisches Patentamt | 2015
|Europäisches Patentamt | 2021
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